Claim · model-written summary
Total P uptake correlated linearly with root surface area at each applied P level.
Zea maysNot reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total P uptake was linearly correlated with root surface area at each level of applied P”
t0“Maize”
Title
D. K. Friesen; M. H. Miller; A. S. R. Juo Soil Science Society of America Journal 1980. doi:10.2136/sssaj1980.03615995004400060019x
Other claims from this paper (17)
- Observation Maize growth showed strong, highly significant interactions on both soils.
- Intervention effect The lime–P interaction was positive only below lime rates equivalent to KCl-exchangeable Al content.
- Intervention effect Liming to pH 5.5 substantially increased total P uptake and root surface area per unit length.
- Intervention effect Liming did not alter P uptake per unit root surface area.
- Association Total P uptake correlated with the product of root surface area and available P.
- Mechanism The authors attributed the lime–P interaction primarily to improved root exploitation of soil P.
- Observation A third-order lime × P × Zn interaction occurred at high lime rates at pH 6 to 7.
- Intervention effect Overliming depressed yield only without applied Zn.
- Association Shoot yields were closely related to soil-solution Zn activities.
- Intervention effect Liming to neutrality did not reduce total P uptake.
- Association Total Zn uptake correlated linearly with Zn activity multiplied by root weight.
- Mechanism Aluminum toxicity was the primary limitation on maize growth in the two greenhouse Ultisols.
- Intervention effect Plants did not respond to gypsum treatments.
- Intervention effect Gypsum raised tissue Ca concentrations and gross Ca uptake to levels comparable with equivalent lime treatments.
- Association Maize shoot yield declined above 28% exchangeable Al saturation.
- Association Maize shoot yield declined above 4 µg/ml total soil-solution Al.
- Intervention effect Maximum shoot yields occurred at low lime rates raising fertilized-soil pH to about 5.0.